Whistle



(No M'odel.)

. WHISTLE. v

No. 604,918. Patented May 31, 1898.

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` wmvsssn.' i /NVEN roh TN: Nonms Pz'rzr N .nuovo-1.11m.. wAsHmcToN u c UNITED 'STATES y PATENT OFFICE.

.IULIUS HANSON, OF GOVERNORS ISLAND, NEW YORK.

" WHISTLE.

SPECIFICATION forming part of Letters Patent No. 604,918, dated May 31, 1898.

Application filed October 7, 1897. Serial No. 654,323. (No model.)

To all whom t may concern.:

Be it known that I, JU'LIUs L. HANsoN, a citizen of the United States, residing at Gov- 'ernors Island, in the county of New York and State of New York, have invented certain new Aand useful Improvements in Whistles, of

which the following is a full and complete specification, such as will enable those skilled .in the art to which it appertains to make and of this class are required.

The invention is fully disclosed in the following specification, of which the accompany'- ing drawings form a part, in which- Figure 1 is a side View of my improved Whistle; Fig. 2, a plan view thereof, and Fig. 3 a cross-section on the line 3 3 of Fig. 2.v

In the drawings forming part of this specification the separate parts of my improvement are designated by the same numerals of reference in each of the views, and in the practice of my invention I provide a Whistle of the class herein specified which consists of two cylindrical telescopic casings 5 and 6 and other details of construction, which Iwill now proceed to describe.

Theupper casing 5 is adapted to slide in the lower casing 6, and the lower casing 6 is closed atl the bottom and open at the top, andthe upper casing 5 is provided with a top 7 and a bottom 8, and below the bottom 8 said upper casing is provided with a downwardlydirected ange or rim 9.

The upper casing 5 is provided in the sides thereof with a plurality of vertical slots or openings 10, which, as shown in the drawings, are three in number, and the top 7 thereof is provided with corresponding radial and triangular notches or recesses 11, and the bottom casing 6 is provided with inwardly-diy rected lugs or projections'12 at the top thereof,

which project into vthe slots'or openings 10 and overlap the bottom 8 of the `upper casing 5, so as to preventtheseparation of said casinvs.

Iwounted centrally ofA the bottom casing 6 is a spring 13, which comprises a central coil 14 and spring-arms 15, and the spring-arms 15 have bearings in the bottom of the casing 6 and in the bottom of the casing 5,*and said spring is held in position by said bearings, and the object of the spring 13 is to normally hold the casings 5 and 6 in the position shown in Fig. 3, and said casings may be telescoped or the casing 5 forced into the casing 6 against the operation of said spring by pressure applied to the top of the casing 5 and the bottom of the casing 6. I also place in the casing 5 air-chambers 16, three of which are shown, and each of which is provided in the top thereof with a perforation 17, and the bottom of the casing 5 is provided with corresponding perforations 18, and when the casing 5 is forced into the casing 6 the air from the casing 6 will be forced through said perforation's in the bottom 8 of the casing 5, through the air-chambers 16, and through the perforations 17 in the top thereof and out through the slots oropenings in the sides of the casing 5, and this operation will produce a short sharp sound or whistle.

The air-casings 16 are shown in dotted lines in Fig. 2 and in full lines in Fig. 3 and are preferably arranged radially and sV aired to the bottom of the casing 5 or forme thereon.

The construction of the sprinf I 13 is such that .the force required to telesf` 1 ne the casings or force the casing 5 in tl casing 6 is vmuch less at the last than at ,ne beginning of said movement, and it will be understood that as the pressure is remov ed from the casing 5 the spring 13 will force it outwardly again, and this operation may be repeated as often as desired.

-I also prefer to placeon the top of the casd ing 5 and on the bottoniof the casing 6 thumb or finger cups or pieces I8, against or in which the thumb and fing' y are placed in the oper ation of the device; but these features are not essential and may or may not be employed.

Myimprovement is simple in construction nd operation and is also comparatively inex pensive, and it will be apparent that changes vfrom the spirit of my invention or sacrificing its advantages. A Having fully described my invention, I

elailn as new and desire to secure by Letters Patent- 1. A whistle comprising a bottom casing, a top casing arranged therein and adapted to telescope therewith, means to prevent the separation of said easings, the said top casing being provided with slots or openings in the sides thereof, air-chambers arranged upon Said top casing, and provided with openings communicating with the interior of the bottom casing and the top casing, and a Spring arranged in the bottom casing for forcing the top casing upwardly, substantially as described.

2. A whistle comprising a bottom casing provided upon its upper edge with inwardlyprojecting lugs, a top Casin g arranged within said bottom casing and adapted to telescope therewith, the said top casing being provided with slots 0r openings in its sides within which the lugs of the lower casing are guided, air-chambers arranged upon said top casing and provided with openings communicating with the interior of the bottom casing and with the top easing, and a spring arranged in the bottom casing for forcing the top easing upwardly, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribin g witnesses, this 5th day of October', 1897.

JULIUS L. IIANSON.

Vitncsses:

C. GEEST, S. L. llMvKSHURS'r. 

